INCOME TAXES - Schedule of Income Taxes Provision (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current expense
Federal	$ 23,608,814us-gaap_CurrentFederalTaxExpenseBenefit
State and local	10,170,483
Total current expense	33,779,297us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred expense/(benefit)
Federal	(4,356,908)
State and local	(2,817,613)
Total deferred expense/(benefit)	(7,174,521)us-gaap_DeferredIncomeTaxExpenseBenefit
Provision for income tax expense	$ 26,604,776us-gaap_IncomeTaxExpenseBenefit	$ 3,729,778us-gaap_IncomeTaxExpenseBenefit	$ 2,583,999us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.